Caulking tool



FIG. 1 is a bottom perspective view of a caulking tool showing my new design;

FIG. 2 is a top perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof, the rear view being a mirror image;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right side elevational view thereof. 

The ornamental design for a caulking tool, as shown and described. 